<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script type="text/javascript">
        var arr = ["王一", "王二", "王三"];

        var result1 = arr.push("王四");
        var result2 = arr.push("王五", "王六");

        console.log(result1);
        console.log(result2);
        console.log(JSON.stringify(arr));
    </script>
</body>

</html>